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Title |
Bond Performance of Magnesium Potassium Phosphate Cement Mortar according to Moisture Condition of Substrate
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Authors |
강석표(Suk-Pyo Kang) ; 김재환(Jae-Hwan Kim) |
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DOI |
https://doi.org/10.11112/jksmi.2016.21.1.015 |
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Keywords |
마그네슘 인산칼륨 시멘트 복합체 ; 함수조건 ; 부착강도 ; 폴리머 시멘트 모르타르 ; 에폭시 모르타르 Magnesium potassium phosphate cement ; Moisture condition ; Bond strength ; Polymer cement mortar ; Epoxy mortar |
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Abstract |
This study focuses on the investigation of bond strength of magnesium potassium phosphate cement mortar(MKPC) according to moisture condition of substrate. Tensile bond test, shear bond test and interfacial bond test are adopted for evaluating the adhesion characteristics of MKPC to conventional cement mortar substrate. The main experimental variables are test methods and moisture levels of substrate. Because the moisture condition of the substrate may be critical to achieving bond, optimum moisture condition for a conventional concrete substrate has evaluated in this study. The results are as follows ; The effects of moisture condition at substrate into the bonding of MKPC are less different than polymer cement mortar and epoxy mortar. But the saturated and surface dry condition is the most appropriate moisture level among the considered, followed by saturated condition and wet condition. Thus, an adequate moisture level of substrate for MKPC is essential for good bond strength.
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